Out of the following given choices;
a. arytenoid cartilage. b. carina. c. secondary bronchi. d. thyroid cartilage.
The answer is D. This is the largest bone of the larynx’s 9 cartilages and is visible as Adam's apple. They house the vocal cords. While it sits above the thyroids gland, it has no relation to the gland. It is composed of two half cartilages and does not completely encircle the trachea.